Christopher Kunz from the Hardened-PHP Project discovered that phpSysInfo is vulnerable to local file inclusion, cross-site scripting and a HTTP Response Splitting attacks.

Impact

A local attacker may exploit the file inclusion vulnerability by sending malicious requests, causing the execution of arbitrary code with the rights of the user running the web server. A remote attacker could exploit the vulnerability to disclose local file content. Furthermore, the cross-site scripting issues gives a remote attacker the ability to inject and execute malicious script code in the user's browser context or to steal cookie-based authentication credentials. The HTTP response splitting issue give an attacker the ability to perform site hijacking and cache poisoning.